EPA Method 8260B
ALS - Columbia offers EPA Method 8260B testing at these laboratories:
|Jacksonville, Florida Laboratory|
|Kelso, Washington Laboratory|
|Rochester, New York Laboratory|
ALS - Columbia offers the following EPA Method 8260 variations:
EPA Method 8260C testing is available at the Rochester Laboratory.
Method information displayed is provided for informational purposes only. No warranty (express or implied) is made as to the website accuracy, completeness, or applicability (such as the age of a method and whether or not it applies to your project). Please contact us for assistance.
View Actual EPA Method 8260B (PDF File)
EPA Method 8260B:
Volatile Organic Compounds by Gas Chromatography/Mass Spectrometry (GC/MS)
Volatile compounds are introduced into a GC with a capillary column by a purge-and-trap method or by other methods including azeotropic distillation, vacuum distillation, head space, direct injection, etc. Identification of target analytes os accomplished by comparing their mass spectra with the electron impact (or electron impact-like) spectra of authentic standards. Quantitation is accomplished by comparing the response of a major ion relative to an internal standard using a five-point calibration curve.
This method determines most volatile organic compounds with boiling points below 200 C.
SW-846 Online: Test Methods for Evaluating Solid Waste, Physical/Chemical Methods
Contamination by diffusion of volatile organic compounds may occur through the septum seal of the sample container while in the laboratory or during shipment and/or storage. Special precautions must be taken when analyzing for methylene chloride, a common laboratory solvent. Teh analytical and sample storage area should be isolated from all atmospheric sources of methylene chloride. Otherwise, random background levels will result. Major contaminant sources are volatile materials in the laboratory and impurities in the inert purging gas and in the sorbent trap. The use of non-polytetrafluoroethylene (PTFE) thread sealants, plastic tubing, or flow controllers with rubber components should be avoided, since such materials out-gas organic compounds which will be concentrated in the trap during the purge operation. Analyses of calibration and reagent blanks provide information about the presence of contaminants. When potential interfering peaks are noted in blanks, the analyst should change the purge gas source and regenerate the molecular sieve purge gas filter. Subtracting blank values from sample results is not permitted. If reporting values without correcting for the blank results in what the laboratory feels is a false positive result for a sample, the laboratory should fully explain this in text accompanying the uncorrected data.
QC procedures include evaluation of retention time windows, calibration verification, acceptable chromatographic analysis of samples, GC/MS tuning to meet specifications including acceptable 4-bromofluorobenzene (BFB) every 12-hour shift, initial demonstration of proficiency by the laboratory, and analysis of appropriate QC samples (including method blanks, matrix spikes, duplicates, and laboratory control samples (LCS) in each analytical batch plus the addition of surrogates to each field sample and QC sample.
Maximum Holding Time:
14 days (after collection)
Variable per analyte.
5030, 5035, 5031, 5032, 5021, 5041
See performance tables in method.
Detection limits using a variety of sample preparative methods are included.
Rev. 2, 1996
Volatile Organic Compounds by GC/MS
Instrument used for this test:
At least 156 analytes can be tested by ALS - Columbia using EPA Method 8260B. Please contact us for all available analytes which can be tested by EPA Method 8260B.
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